Building-block



(Nc Model.)

A. FBDERIGI. BUILDING BLOGKg No. 527,416. Patented Oct. 16,1894.

` m; Nonms Varens co. PHOTO-uws.. WASHINGTON n4 c.

n To all whom t may concern.- e

n Fig. 2 represents the face of a stone showing `unpelobled as clearly shown in Fig. l, al-

e UNITED `STATES y PATENT OFFICE.

ANTONIO FEDERICI, OF PATERSON, NEW JERSEY.

BUILDING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 527,416, dated October 16.1894.

Application iiled March 30, 1893.

Be it known that I, ANTONIO FEDERIOI, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Building-Blocks; and I do declare the following to be a tull,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specitication.

The object of my invention is to provide an artificial stone for building purposes which shall be durable and ornamental and which can be cheaply and easily manufactured.

The invention consistsiof a stone comprising the following elements: cement, sand, and pebbles, arranged as hereinafter described and shown in the accompanyingfdrawings.

In the drawings Figure l represents the corner of a wall built with myarticial stone.

the pebbles. Fig. 3 is a View of a section of my artificial stone through the line X-X,

Fig. 2. m

-A- represents the stone; -B the pebrepresents the other portion of the stone which is composed of cement and sand. t

The portion -D- of the stone is composed of Portland cement and the best sharp sand, whichI mix in suitable proportions and make or mold in any suitable size or shape. I then prepare some pure Portland cement and spread alayer thereof upon that exposed snrface of the portion -D- which is to form the face of the stone. `While the material is yet plastic, assorted pebbles, B, are partially sunk into the centralpart of the face or faces of the stonea margin on said face being left though it is obvious that the whole surface, as shown in Figs."2land 3, may be covered without departing from the spirit of my invention. The block is then left until it hardens.

Fig. 3 shows the composition of my artifi- Serial No. 468,261. (No model.)

ing purposes for which it is peculiarly i adapted, as the action of the weather produces no ill effect upon it; but by bleaching the pebbles rather enhances its beauty.

I am aware that in the construction of pavements, roadways, and walking surfaces, that gravel, sand and cement have been used for uniting the blocks or cobble-stones and that in some instances materials distinguished for their sharp, hard and angular and gritty chai'- acter have been used in an artificial stone or a concrete walking surface, in order to prevent slipping, &c., and in other cases Where metallic gratings have been combined with an under or body of cement or concrete; but I am not aware that a building block has ever been constructed` with exposed surfaces con-` sisting of very small pebbles partially embedded in a layer of pure cement.

I am also aware of a building block formed of a cement or concrete body with pieces of tiling, glass or other hard substances embedded therein flush with the surface of the sand; but in my stone the pebbles are very small and are only partially embedded in the layer of cement upon the exposed surfaces thereof. I am also aware that it is not new to form a block for paving streets by coveringalayer of bricks with cement and embedding therein a surface layer of cobble-stones of suitable size for resisting the wear incident to heavy traffic.

As I do not confine myself to pebbles of any particular color it is obvious that in ornamental trimmings on buildings, the arches, sills or cornices maybe of variegated colors; and as I do not confine myself to any special shape, my artificial stone may beused in all sorts of mason work for walls, dwellings or other buildings, in all cases the faces or ex posed portions of my stone being constructed roo ent, into the surface of which pebbles, of substantially nniform size, are partially embedded, substantially as andfor the purpose set forth. A

In testimony whereof I affix my signature in 15 presence of rtwo Witnesses. Y Y

ANTONIO FEDERICI.

substantially as aboye specified with pel),- bles, partially/,embedded in a layer of .pure cement on said faces.

With the above description of my inven- 5 tion, what I claim is A new article of manufacture consisting of a building block, the body portion of" which is composed of a comparatively coarse mate- Witnesses: rial, the face or exposed surface being com- G. J. KERR, ro posed of finer material, such as Portlandcem- W. M. DREW. 

